51 swimmers representing 25 countries have completed the Oceans Seven since it was first proposed in 2008.

As of last week, swimmers from Ireland, Sweden, USA, England, New Zealand, Mexico, Moldavia, Ireland, India, Czech Republic, South Africa, Australia, Germany, Hungary, Spain, Croatia, Scotland, Chile, Romania, Bulgaria, Peru, Brazil, Turkey, and Poland have crossed the English Channel, North Channel, Strait of Gibraltar, Cook Strait, Molokai Channel, Catalina Channel, and Tsugaru Channel.

On July 17th, one more swimmer and one more country were added to the list.

Toni Enderli (48, MSF bio here, @tenderliswissprop) became the first swimmer from Switzerland to achieve the Oceans Seven with his recent 9 hour 40 minute crossing of the Tsugaru Channel in northern Japan.

Under the guidance of Captain Kawayama, Enderli completed an admittedly “very tough” crossing on a remarkably straight course.

A motivational speaker of note, Enderli had many admirers. Among them, his brother said before his Tsugaru attempt began, “Years of sacrifice, early mornings, freezing water, setbacks and comebacks have all led to this moment. Watching his journey over the years has been incredibly inspiring. I’m already so proud of you. Go finish what you started.”

Toni Enderli’s Oceans Seven Journey

• Strait of Gibraltar in 5 hours 19 minutes in September 2010
• English Channel in 14 hours 47 minutes in September 2015
• Molokai Channel in 20 hours 35 minutes in September 2017
• Catalina Channel in 11 hours 33 minutes in June 2022
• Cook Strait in 10 hours 48 minutes in February 2024
• North Channel in 14 hours 26 minutes in July 2025
• Tsugaru Channel in 9 hours 40 minutes on July 17th 2026

Enderli wrote, “Looking back at this Oceans Seven journey, what stands out most isn’t the distance, the hours, or even the swims themselves. Over the past 16 years, this challenge has taken me across 7 oceans, more than 223 km of open water, and over 96 hours of swimming. But the real gift has been the people I’ve met, the friendships formed, and the cultures I’ve been fortunate enough to experience along the way.

From local fishermen, pilots, crew members and volunteers, to fellow swimmers, family, friends and supporters, every crossing has been a team effort. I’ve learned that resilience comes in many forms, that kindness exists in every corner of the world, and that some of life’s greatest lessons happen far outside our comfort zones.

The oceans have taught me patience, humility and respect. They’ve reminded me that nature is always in charge, and that success is never achieved alone.“

For more information, visit tonienderli.com.

Oceans Seven Achievement

Update: Enderli completed his Tsugaru Channel crossing to become the 51st person in history to achieve the Oceans Seven on July 17th. Official time to be confirmed.

Oceans Seven Swimmers

1st: Stephen Redmond (Ireland)
2nd: Anna-Carin Nordin (Sweden)
3rd: Michelle Macy (USA)
4th: Darren Miller (USA)
5th: Adam Walker (UK)
6th: Kimberley Chambers (New Zealand)
7th: Antonio Argüelles (Mexico)
8th: Ion Lazarenco Tiron (Moldavia/Ireland)
9th: Rohan Dattatrey More (India)
10th: Abhejali Bernardová (Czech Republic)
11th: Cameron Bellamy (South Africa)
12th: Lynton Mortensen (Australia)
13th: Thomas Pembroke (Australia)
14th: Nora Toledano Cadena (Mexico)
15th: Mariel Hawley Davila (Mexico)
16th: André Wiersig (Germany)
17th: Elizabeth Fry (USA)
18th: Attila Mányoki (Hungary)
19th: Jonathan Ratcliffe (UK)
20th: Jorge Crivilles Villanueva (Spain)]
21st: Adrian Sarchet (Guernsey)
22nd: Prabhat Koli (India)
23rd: Dina Levačić (Croatia)
24th: Herman van der Westhuizen (South Africa)
25th: Andy Donaldson (Scotland)
26th: Stephen Junk (Australia)
27th: Kieron Palframan (South Africa)
28th: Bárbara Hernández Huerta (Chile)
29th: Mark Sowerby (Australia)
30th: Paul Georgescu (Romania)
31st: Zach Margolis (USA)
32nd: Petar Stoychev (Bulgaria)
33rd: Nathalia Pohl (Germany)
34th: Caitlin O’Reilly (New Zealand) at the age of 20 years 7 months 15 days
35th: Ryan Utsumi (USA)
36th: Marcia Cleveland (USA)
37th: Eduardo Collazos Valle-Guayo (Peru)
38th: Rob Woodhouse (Australia)
39th: Alessandra Rossi Cima (Brazil)
40th: Bengisu Avci (Turkey)
41st: Simon Olliver (New Zealand)
42nd: Andreas Waschburger (Germany)
43rd: Joanne Norman (Australia)
44th: Paul Leonard (Great Britain)
45th: Gráinne Moss (Ireland)
46th: Karen Ennis (Great Britain)
47th: Rob Lea (USA) who simultaneously achieved history’s first Double Sevens
48th: Anshuman Jhingran (India at 21 years 3 months and 17 days)
49th: Joe Zemaitis (USA) who became the first person to complete the Oceans Seven and the Stillwater 8
50th: Bogusław Ogrodnik (Poland)
51st: Toni Enderli (Switzerland)

© 2026 Daily News of Open Water Swimming

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